Dichromatism in Lina Lapponica. 127 



19 Be? 19 B$ 27 Bd^ 27 B? 39 Bd^ 39 B $ 29 Bd^ 29 BQ 



Bd^ and 9 



Bd* and $ 



Bd* and $ 



Bd* and $ 



Bd* and 9 



Bd* and 9 



Bd* and 9 



Bd^ and 9 



Bd' and 9 



Bd^ and 9 



Fig. I. 

 Diagram showing pedigree of certain B broods through three generations. 



32 Sd" 32S9 73Sd' 73 S9 112Sd' 112S9 119 Sd" 119S9 



J I I L 



Sd* and 9 



Sd" and 9 



Sd" and 9, S Bd* and 9 



Sd* and 9, S Bd^ and d* 



Sd" and 9 



Sd" and 9 



Sd* and 9 



Sd" and 9, S Bd* and 9 



Sd' and 9, S Bd" and 9 



Sd" and 9 



Fig. 2. 

 Diagram showing pedigree of certain S broods through three generations, the parents having been 

 selected from pure S broods only, viz: broods from 7 Sd' X 39 S 9 and 39 S d* X 7 S 9 • See Table 

 V, (3 and b. 



